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  • Source document: kernel/configuration/config.md

  • Translation time: 2025-05-19 01:41:17

  • Translation model: Qwen/Qwen3-8B

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Kernel Compilation Configuration Guide

Principle

  Within the kernel directory, the kernel configuration is set using kernel.config. This file is parsed in a manner similar to a TOML file, and then the configuration of each module’s d.config is parsed to determine the status of features.

Example

kernel.config

[[module.include]]
name = "init"
path = "src/init/"
enable = "y"
description = ""

[[module.include]]
name = "mm"
path = "src/mm/"
enable = "y"
description = ""

  • [[module.include]]: Adds the module to the include list

  • name: Module name

  • path: Module path, where the d.config file is located

  • enable:

    • y: Enabled, parse the d.config file of the module

    • n: Disabled, do not parse

  • description: Description of the module

src/mm/d.config

[module]
name = "mm"
description = ""

[[module.include]]
name = "allocator"
path = "src/mm/allocator/"
enable = "y"
description = ""

[[module.features]]
name = "mm_debug"
enable = "y"
description = ""

  • [module]: Current module

    • name: Name of the current module

    • description: Description of the module

  • [[module.include]]: Modules included in the current module, same as in kernel.config

  • [[module.features]]: Features in the current module

    • name: Feature name

    • enable: Whether the feature is enabled

      • y: Enabled

      • n: Disabled

    • description: Description of the feature

The following are the d.config files of other modules:

src/mm/allocator/d.config

[module]
name = "allocator"
description = ""

[[module.features]]
name = "allocator_debug"
enable = "y"
description = ""

src/init/d.config

[module]
name = "init"
description = ""

[[module.features]]
name = "init_debug"
enable = "y"
description = ""

All features enabled in the d.config files of the activated modules will be ultimately generated into the D.config file in the kernel directory. That is, D.config is the final kernel compilation configuration, as follows:

D.config

init_debug = y
allocator_debug = y
mm_debug = y